Frans: I have the PSR-510. It was a Christmas from my sister. I've played it a lot and it still works fine. I've played many expensive electronic organs whose keyboards were in bad shape after 3 or 4 years so I'm impressed that the inexpensive 510's keyboard still plays like new after nearly 15 years.

Ian: Thanks for the info and the forum link. I'm curious to learn how many styles I can store in the USER style group.

-David